If driver do not support ATTR_SERVER_VERSION (like dblib) fallback to the version from config, or set null as we do not know what is the driver version.
I belive this is better solution then add some creazy switch with queries for all possible versions on all drivers, and becouse it is faster to pass variable then run query asking about version.
Since MsSql2012 allow using of OFFSET, I added this option to the driver for PDO. Driver will automaticly recognize this is proper version and use the new offset.
Commit 7318658017 removed apostrophes from dates and that caused
dibi to build different queries. Compare:
...WHERE `date_created` < '2014-02-21';
vs.
...WHERE `date_created` < 2014-02-21;
